There are 2 bass guitars along with the synth bass so yes its a size 44 bottom trying to find room in size 36 jeans.Love the song and the Bowie feel !
I think there's a problem with the low instruments fighting for space and robbing the clairity. I would start with bass against the kick and low toms.
Just my 2 cents .. Still Nice .. mark
The low end rumble is probably the 2nd bass Probably fixable with some surgical EQ. Cheers TripIndividually the sounds of everything are cool.
But everything is fighting for space. The vocals are competing with the guitars. The bass and kick are competing for low end. The guitars are fighting each other. etc.
There also a bit of a low end rumble problem.